Alright, let's work through 2421 times 724 step by step
2421 × 724 = 724 × (2421)
+ 724 × 1 that equals 724
+ 724 × 20 which equals 14480
+ 724 × 400 giving us 289600
+ 724 × 2000 producing 1448000

= 1752804
